LOVE the BPIAB! I own one and have lent it to friends - so far, five babies have been born in it! For my birth in it, we filled it, then covered it with a quilt from our bed (a king size, but smaller may have worked). It kept it plenty warm, and later there was hot water in the hot water heater to top it off with. The big, thick sides are very insulating, and VERY comfy. Overall inflation was pretty quick, once we got to an air pump that plugged directly into the wall and actually worked! <img alt="" class="inlineimg" src="http://www.mothering.com/discussions/images/smilies/redface.gif" style="border:0px solid;" title="Embarrassment"> It had plenty of room (we have the full size one), such that I could both sit and stretch my legs straight out, and also in transition I was crawling around the pool on hands and knees, 'cause, um, that's what worked. <img alt="" class="inlineimg" src="http://www.mothering.com/discussions/images/smilies/lol.gif" style="border:0px solid;" title="lol"><br><br>
The handles were good when it came time to push, too - I didn't expect them to be, but they were great. Just make sure the seat is fully inflated. Because of our pump issues, mine wasn't, and that REALLY bugged me. This time, it will be! <img alt="" class="inlineimg" src="http://www.mothering.com/discussions/images/smilies/smile.gif" style="border:0px solid;" title="smile">